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[committed, PATCH] Set PLT_CFLAGS to "-fplt" if supported
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: binutils at sourceware dot org
- Date: Mon, 27 Jul 2015 05:12:41 -0700
- Subject: [committed, PATCH] Set PLT_CFLAGS to "-fplt" if supported
- Authentication-results: sourceware.org; auth=none
GCC 6 supports -fno-plt. But some linker tests expect PLT. This patch
defines PLT_CFLAGS to "-fplt" if target compiler supports it.
* config/default.exp (PLT_CFLAGS): New.
---
ld/testsuite/ChangeLog | 4 ++++
ld/testsuite/config/default.exp | 35 +++++++++++++++++++++++++++++++++++
2 files changed, 39 insertions(+)
diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index de0ad1b..b7891d8 100644
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2015-07-27 H.J. Lu <hongjiu.lu@intel.com>
+
+ * config/default.exp (PLT_CFLAGS): New.
+
2015-07-26 H.J. Lu <hongjiu.lu@intel.com>
PR ld/18718
diff --git a/ld/testsuite/config/default.exp b/ld/testsuite/config/default.exp
index e25189b..5acc963 100644
--- a/ld/testsuite/config/default.exp
+++ b/ld/testsuite/config/default.exp
@@ -278,3 +278,38 @@ if ![info exists LD] then {
if ![info exists LDFLAGS] then {
set LDFLAGS {}
}
+
+# Set PLT_CFLAGS to "-fplt" if target compiler supports it.
+
+if { ![info exists PLT_CFLAGS] } then {
+ if { [which $CC] != 0 } {
+ # Check if gcc supports -fplt
+ set flags ""
+ if [board_info [target_info name] exists cflags] {
+ append flags " [board_info [target_info name] cflags]"
+ }
+ if [board_info [target_info name] exists ldflags] {
+ append flags " [board_info [target_info name] ldflags]"
+ }
+
+ set basename "tmpdir/plt[pid]"
+ set src ${basename}.c
+ set output ${basename}.o
+ set f [open $src "w"]
+ puts $f ""
+ close $f
+ remote_download host $src
+ set plt_available [run_host_cmd_yesno "$CC" "$flags -c -fplt $src -o $output"]
+ remote_file host delete $src
+ remote_file host delete $output
+ file delete $src
+
+ if { $plt_available == 1 } then {
+ set PLT_CFLAGS "-fplt"
+ } else {
+ set PLT_CFLAGS ""
+ }
+ } else {
+ set PLT_CFLAGS ""
+ }
+}
--
2.4.3